Road machine



0. F.- CHURCH May 21, 1935.

ROAD MACHINE 0. F. CHURCH May 21, 1935.

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Patented May 21, 1935 -UNITED"S1TATES PATENT; oFFicr. T j

. ROAD MACHINE V omerF; ChurchQArthur, 111., assignor to RoadSupply-(10., Arthur, 111., a firm composed .of John S. Pribble andChester E. Caliill Application January 26, 1933, Serial No. 653,691

3 Claims. (cl. awe-145) V J a y In conjunction withthe sled, I provide ascari- This invention relates to an improvedroad machine and seeks,among other object's, to provide a machine which will effectivelyscarify and level a road surface. I

The invention seeks, as a furtherpobject, to

provide a machine embodying a scarifier and a sled-supporting thescarifier in sucha way that the machine willslide overthe low placesin'the places by the drag of the machine.

A further object of the invention is to provide "a machine adapted foruse on ordinary dirt roads and gravel roads, as well as oil roads, andwherein thescarifier may be adjustably raised or'lowered upon the sled.

And theinvention seeks, as a still further object, to provide a machineembodying an improved drag in the rear of the'scarifier, and wherein thedrag may be adiustably raised orlowered.

Other and incidental objectsof the invention, not specifically mentionedin the foregoing, will be apparent during the course of the followingdescription.

In the accompanying drawings forming a part of this application, Figure1 is a plan view of my improved machine,

Figure 2 is a vertical longitudinal sectional view on the line 2-2 ofFigure 1, and

Figure 3 is a transverse sectional view on the line 3-3 of Figure 2.

Referring now more particularly to the drawings, I provide a sledembodying side runners In which are preferably formed of suitableI-beams, and extending transversely between the runners, at their ends,are front and rear cross bars I I and I2, preferably formed of suitableangle irons. The runners are beveled at their forward ends, asparticularly seen in Figure 2, and extending across the angles betweenthe forward end portions of said runners and the cross bar II are bracesl3. Overlying the bottom flanges of the runners, to extend up theinclined forward ends of said run-. ners are appropriate shoes l4provided at their forward extremities with ears l5 which are bentinwardly to overlie the inner side faces of the runners, and swinginglyconnected to the forward ends of the runners are clevises I 6, the pivotbolts of which extend through said ears. Connected to said clevises isan appropriate pull chain l1. Near its forward end, the sled carries achannel shaped cross plate l8 bolted or otherwise secured at its ends tothe top flanges of the runners and fixed to said plate is a seat I9.

fier, the oblong frame of which is freely received between the runnersIII. The scarifier frame preferably includes channel shaped side barsand extending transversely between said bars is a front bar'2l, a centerbar 22 and a rearbar 23,, all 'of which are also preferablyof channelshape. Fittinglin the front bar 2! is a channel shaped reinforcing bar.24 appropriately secured to the front bar for lending added rigiditythereto and it is now to be observed that the scarifier frame is of suchwidth that the side bars .20 thereof project between the top and bottomflanges of the runners In at the inner sides of the runners so that thescarifier cannot accidentally drop, between the runners to; becomedisplaced. Furthermore, as will be noted, the side bars 20 of thescarifier frame more or. less closelyapproach, the runners Hl at theirinner sides :so that the runners willjhold the-scarifier against angulardisplacement. Lying flat against. the

front faces of the bars 2|, 22-and 23;are rows of teeth 25 and overlyingthe rows .of;-,teeth are clamping plates ,26-securcd to; the bars. bybolts 21 arranged at opposite sides of the teeth close thereto. Theteeth will thus be securely connected with the bars while the bolts willprevent angular displacement of the teeth and, as will be noted uponreference to Figure 1, the teeth of all of the rows are staggered withrespect to each other. 7 V

Secured to the top flanges of the runners l0, near the ends thereof, arepairs of alined bearing plates 28 and journaled in said plates are frontand rear cross shafts 29. Fixed to these shafts, near the ends thereof,are crank arms 30. Fixed to the end portions of the side bars 20 of thescarifier frame are angle plates 3| and swingingly connecting the cranks30 with said plates are pairs of links 32. Fixed to the forward crossshaft, near one end thereof, is a hand lever 33 carrying an appropriatelatch 34 to cooperate with a segment 35 fixed to the adjacent runner ofthe sled, and upstanding from the rear cross shaft is a crank arm 36connected with the lever 33 by a rod 31.

Thus, as will now be seen, the hand lever 33 may be swung forwardly forlowering the scarifier so that the teeth 25 may dig into the roadway toany desired depth, while, by rocking the lever 33 rearwardly, thescarifier may be elevated and, if so desired, lifted to inactiveposition with the lower ends of the teeth clearing the roadway and, ofcourse, the latch 34, in conjunction with the segment 35, provides ameans for locking the scarifier in any position of adjustment. Securedat their forward ends to the inner sides of the runners l0 and at theirrear ends to the side bars 20 of the scarifier frame, are links 38preferably connected with said side bars near the forward and rear endsthereof. These links will, of course, sustain the rearward thrust on thescarifier when the teeth thereof are engaged with the roadway and as thegreatest strain will be imposed upon the front row of teeth, thereinforcing bar 24 is provided in conjunction with the front cross bar2! of the scarifier frame.

Mounted to cooperate with the scarifier is a drag. This drag preferablyincludes a cross shaft 39 which is supported above the rear cross bar 12of the sled and fixed to said cross bar, at the ends thereof, arebearing plates 40 journaling the shaft. Fixed to the projecting ends ofthe shaft are plates 4| and secured at their forward ends to said platesare the leaves of a pair of springs 42, thespring leaves being graduatedin length. Secured to the outer ends of said springs is an angle shapeddrag plate and fixed to the plate at its upper side is afreinforcingangle bar 44. Fixed to the adjacent runner H) of the sled, forwardly ofthe rear cross shaft 29, is a segment to which is pivoted a hand lever46 carrying a latch 41 to coact with said segment, and up standing fromthe shaft 39, at the adjacent end thereof, is a crank arm 48 connectedwith the lever 46 by a rod 49.

Accordingly, as will now be understood, the hand lever 46 may be rockedforwardly for elevating the drag plate 43 to inactive position out ofengagement with the roadway, while, by swinging said lever rearwardly,the drag plate may be brought into engagement with the road surface.Furthermore, as willbe particularly observed, the hand lever 46 may,after the drag plate 43 has been brought into engagement with the roadsurface, be further swung rearwardly for tensioning the springs 42 andcausing said springs to press downwardly in desired degree upon the dragplate and, of course, the latch 41 provides a means for locking thelever 46 in any position of adjustment.

Thus, after the scarifier has loosened the material of the roadway, thedrag will follow in the rear of the scarifier so that the drag plate 43,under the tension of the spring 22 will smooth the loosened material aswell as carry the loosened material along from the high places in theroad surface into the low places therein so that the finished roadwaywill be smooth and even.

Having thus described the invention, I claim:

1. A road machine comprising runners, downwardly and rearwardly inclinedlinks disposed adjacent the front and rear ends of the runners andpivoted at their front upper ends upon the inner sides of the runners, ascarifier frame including side bars disposed adjacent and parallel tothe respective runners and pivoted to the lower ends of the links,series of scarifier teeth carried by said frame, means carried by therunners and connected with the front and rear ends of the frame forraising and lowering the frame, and a drag carried by the rear ends ofthe runners and arranged transversely thereto.

2 A road machine comprising runners, a scarifier frame hung upon andbetween the runners, said frame consisting of longitudinal and trans-'-verse channel bars and a reversed channel bar secured in the fronttransverse channel bar, longitudinal bars disposed'adjacent therespective runners, scarifier teeth carried by the transverse bars, andmeans on the runners for raising and lowering the scarifier frame.

3. A road machine comprising runners, a scarifier frame carried by andbetween the runners, a rock shaft mounted on the rear ends of therunners, means for setting said shaft, rearwardly projecting platessecured to said shaft, leaf springs secured at their front ends to saidplates and extending downwardly and rearwardly therefrom, and a dragsecured to the rear ends of the springs.

OMER F. CHURCH. [L.S.]

